Single Choice

The upper half of an inclined plane with inclination $$\phi$$ is perfectly smooth while the lower half is rough. A body starting from rest at the top will again come to rest at the bottom if the coefficient of friction for the lower half is given by

A$$2 \tan \phi$$
Correct Answer
B$$\tan \phi$$
C$$2 \sin \phi$$
D$$2 \cos \phi$$

Solution

SIMILAR QUESTIONS

Friction

In general, the relation between limiting friction ______ kinetic friction ______ rolling friction.

Friction

Rolling friction always greater than static friction.

Friction

In general, the relation between limiting friction ______ kinetic friction ______ rolling friction.

Friction

A block of mass $$5$$ kg is lying on a rough horizontal surface. The coefficient of static and kinetic friction are $$0.3$$ and $$0.1$$ and $$g=10ms^{-2}$$. The frictional force on the block is?

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